Idle speed problem and engine reaction problem of Hafei Lubao

Your car is 1. 1 liter Lubao, which should be Fang Sheng. This batch of cars often have the problem of high engine idle speed, which is mainly caused by the insufficient machining accuracy of the engine throttle body in Dong 'an. In order to solve this problem, the final solution is to brush the machine and widen the threshold of its throttle position sensor, which is not so demanding on accuracy.

My car has the same problem. Looking for the data of UMC brush, so far there is no problem of high idle speed.

Because there are many contacts with after-sales people, it is also said that because the signal shielding of the harness is not good, changing the control harness can solve this problem. I don't think this should be a problem. I suggest finding a service station to brush the computer.